/* 
  Variables for easy theme management.
  Dark Graphite: #39393F
  Light Grey text: #F5F5F5
*/
:root {
    --bg-color: #39393F;
    --text-primary: #FFFFFF;
    --text-secondary: #E0E0E0;
    --accent-color: #4DB8FF;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Reset and Base Styles */
html {
    scroll-behavior: smooth;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    /* Ensure content stays above the canvas */
    z-index: 1;
}

/* Canvas Background */
#networkCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1; /* Place behind all content */
    pointer-events: auto; /* Required to capture mouse movements for the graph animation */
}

/* Layout Containers */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 30px 0;
    background: transparent;
    transition: var(--transition-smooth);
}

.nav-container {
    display: flex;
    align-items: center;
}

nav {
    margin-left: auto;
    margin-right: 40px;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    cursor: pointer;
    text-decoration: none;
}

.logo-main {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 1.5px;
    line-height: 1;
    color: var(--text-primary);
    text-transform: uppercase;
}

.logo-sub {
    font-size: 0.55rem;
    font-weight: 400;
    letter-spacing: 1.9px;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
}

.nav-links a:hover {
    color: #ffffff;
}

.nav-links a.active::after {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--text-primary);
    background: transparent;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-primary);
}

.btn-primary {
    background-color: #ffffff;
    color: #111;
    font-weight: 600;
    padding: 12px 30px;
}

.btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.85);
    transform: translateY(-2px);
}

/* Main Content Layout */
main {
    padding-bottom: 50px;
}

/* Hero Section */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    scroll-margin-top: 100px;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 25px;
    text-transform: uppercase;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.hero-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 35px;
    font-weight: 300;
    line-height: 1.6;
}

.hero-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 50px;
}

.hero-content {
    text-align: center;
    width: 100%;
}

.hero-slider-wrapper {
    flex: 1;
    overflow: hidden;
    position: relative;
    width: 100%;
}


.hero-slider {
    display: flex;
    gap: 20px;
    width: max-content;
    transform: translateX(0);
}

.slider-card {
    width: calc((min(90vw, 1200px) - 40px) / 3);
    min-height: 420px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 0;
    position: relative;
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
}

.card-header {
    height: 180px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    position: relative;
    margin: 15px;
}

.card-img {
    width: 100%;
    height: 100%;
    border-radius: 20px;
    position: absolute;
    top: 0;
    left: 0;
    object-fit: cover;
}

.card-body {
    padding: 40px 35px 35px 35px;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.slider-card h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.slider-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 25px;
}



/* Keyframes removed for JS discrete scroll */

.section {
    padding: 80px 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
    scroll-margin-top: 100px;
}

/* Glassmorphism Panels Disabled */
.glass-panel {
    background: transparent;
    padding: 40px;
    margin-bottom: 40px;
    transform: translateY(0);
    transition: transform 0.5s ease;
}

.glass-panel:hover {
    transform: translateY(-5px);
}

/* Typography */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 50px;
    height: 3px;
    background: var(--text-primary);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 300;
}

.content-block p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-weight: 300;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 30px;
    transition: var(--transition-smooth);
}

.service-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Contact Info Section */
.contact-info-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 40px;
    padding: 10px 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    flex-shrink: 0;
}

.contact-text {
    font-size: 1.05rem;
    line-height: 1.5;
    color: var(--text-primary);
}

.contact-text a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
    font-weight: 400;
}

.contact-text a:hover {
    color: var(--accent-color);
}

.contact-text div {
    color: var(--text-primary);
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 0;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    z-index: 101;
}

.desktop-only {
    display: inline-block;
}

.mobile-only {
    display: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .desktop-only {
        display: none !important;
    }

    .mobile-only {
        display: list-item;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 100%;
        width: 100%;
        height: 100vh;
        background: rgba(57, 57, 63, 0.95);
        backdrop-filter: blur(10px);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 30px;
        transition: left 0.3s ease-in-out;
        z-index: 100;
        margin: 0;
        padding: 0;
    }

    .nav-links.nav-active {
        left: 0;
    }

    .nav-links li a {
        font-size: 1.5rem;
    }

    .slider-card {
        width: 85vw;
        min-height: auto;
        padding: 0;
    }

    .prev-btn {
        left: -15px;
    }

    .next-btn {
        right: -15px;
    }

    .hero-layout {
        gap: 30px;
    }

    .section-title {
        font-size: 2rem;
    }

    .glass-panel {
        padding: 25px;
    }

    .contact-info-container {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

/* Lang Dropdown */
.lang-dropdown {
    position: absolute;
    top: calc(100% + 15px);
    right: 0;
    background-color: var(--bg-color);
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    color: var(--text-primary);
    padding: 20px;
    border-radius: 10px;
    z-index: 9999;
    width: 320px;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.lang-dropdown.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Toast Notification */
.toast-notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--bg-color);
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    color: var(--text-primary);
    padding: 20px;
    border-radius: 10px;
    z-index: 9999;
    max-width: 350px;
    transform: translateY(150%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.toast-notification.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-content {
    position: relative;
}

.toast-close {
    position: absolute;
    top: -10px;
    right: -10px;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.toast-close:hover {
    color: var(--text-primary);
}

.toast-content p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
    padding-right: 15px;
}

.toast-content a {
    color: var(--accent-color);
    text-decoration: none;
}

.toast-content a:hover {
    text-decoration: underline;
}